Oslo Marathon 2027
- Date
- September 18, 2027
- Location
- Oslo, Norway
- Distance
- 42.2 km
- Difficulty
- Not rated
The 2027 Oslo Marathon takes place on Saturday, September 18, 2027 in Oslo, Norway. The marathon uses a two-lap course that starts and finishes at Rådhusplassen (City Hall square) in central Oslo. Race-week weather is typically 9°C to 16°C.
Training for the Oslo Marathon?
Coach Icarus builds your plan around your fitness and your schedule.
The course
The marathon uses a two-lap course that starts and finishes at Rådhusplassen (City Hall square) in central Oslo. It follows the Oslofjord waterfront along the harbor promenade past Aker Brygge and the Akershus Fortress, and stretches west to Skøyen and Frogner (Frogner Park) on one lap and east toward the Opera and Sørenga/Grønlia on the other. The course is predominantly flat on asphalt with only gentle inclines, the most notable being a short climb near Tøyen/Botanical Garden.
Course summary source: marathonrunnersdiary.com
Course map & elevation
Distance
42.7 km
Elevation gain
160 m
Elevation loss
163 m
High / low
59 / 2 m
🛰️ Community-sourced GPX with DEM-corrected elevation — not an organizer-verified course.
Race-week weather
Typical high
16°C
Typical low
9°C
Year-to-year swing
±1.0°C
Rain
2.9 mm/day
Based on 2020-2025 of race-week history, with peak gusts around 16 km/h.
Difficulty
Race facts
- Official race site
- oslomaraton.no ↗
- Start time
- 09:00
- Field size
- Not listed
- Boston qualifier
- No
Distances: 42.2 km
When is the Oslo Marathon 2027?
The 2027 Oslo Marathon takes place on Saturday, September 18, 2027.
Training for the Oslo Marathon?
Coach Icarus builds your plan around your fitness and your schedule.
Predict your finish time
Enter one recent race result and get predicted finish times across 5K, 10K, half marathon, and marathon.
Predicted Finish Time
52:07
Pace / km
5:13
Pace / mile
8:23
| Distance | Predicted Time |
|---|---|
| 5K | 25:00 |
| 10K | 52:07 |
| Half Marathon | 1:55:00 |
| Marathon | 3:59:47 |
Predictions assume similar fitness, course, and conditions — they are a starting point for goal setting, not a guarantee.
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